obviously he knows who is asli maa v hv examples too first defend ishita's upbringing in front of a stranger at police station n self thought wen pihu talked abt her...bt wont accept in front of ishita bcs he has to hurt her where it hurts the most...i dont get my puttar srsly...his words r totally against his thoughts his feelings...he said infront of shagun n ishita to nurse..pointing towards shagun ye asli maa h pihu ki...ok but few days back when pihu told him i felt happy when that haar wali aunty was hugging me i wanted to kepp hugging her...Raman said in mind..woh isliye kyunki woh tumhari asli maa h..